Learning everyday English just by listening to podcasts? Definetly, it works! Try this link to have access to some British Council intermediate level podcasts or this one for more advance podcasts! You can also find listening activities, radio pregrammes and podcasts in this C1 link. Isn't it fun? Other really short interest podcasts are the six-minutes BBC recordings. If you are looking for even less than 5 minutes podcasts at different levels that is your link . Listening is free but you have to pay for transcript or worksheets.